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W. G. TRASK. LOOP RIVETING ATTACHMENT. No. 462,603. Patented Nov. 3,1891.

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\VILBER O. TRASK, OF MEMPHIS, TENNESSEE, ASSIGNOR Ol ONE-HALF TO THE CIHCKASAW SADDLERY COMPANY, OF SAME PLACE.

LUGP Pilt ETENG ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 462,608, dated November 3, 1891.

Application filed April 13, 1891. Serial No. 383,630. (llo model.)

To all whom 2 may concern:

Be it known that l, Winner. (1. TRASK, of Memphis, in the county of Shelby and titate of Tennessee, have invented certain new and useful lm irovements in lioop-liiveting Attachments for lrlivetiug-Machinee, of which the following a specification.

My invention relates to certain improvements, as hereinafter claimed, in devices of the classemployed for riveting loops olleather, the, in position, especially applicable to use in the formation of boxloops and attachment of them to hcadstalls, traces, the, of harness; and my objects are to provide a simple, inexpensive, and clliciently-operating attachment of this kind for use with hox-loops of varying sizes and adapted for ready connection to and removal from asuitable riveting-machine, which, when theattachment is not employed, may be used for other work, usual.

In the accompanying drarwi ngs, showing my improvements as adapted for use in connection with a harness-makcfs riveting-niacinno of well known construction, Figure 1 is a view in elevation, showing the riveting-machine sufliciently in detail with. my improved attachment in position. Fig. l isa detail view showing detached from the machine the ordinarily-em ployed ri vet-upsetting anvil thereof. Figs. 2 and 3 are views in perspective of the attachment, showing dii'ti-n'entsized loop-carriers. Fig. at is a view showing in loi'igitudinal section portions of a bridle-headstall and attached box-loop and blind or blinkcr with the parts secured together by riveting. Fig. 5 is a similar view with the blind omitted, and Fig. 0 is a section'on the line 6 of Fig. l.

The attachment is adapted to be secured in proper working position to any of the wellknown and suitably-constrnoted riveting-machines, and it is deemed unnecessary to fully illustrate and in detail describe the peculiarities of such machines further than to make plain the manner oi applying and using the attachment in connection with that one of them partly shown.

In the machine in this instance shown there is provided the supporting-stand ft, the frame 13, and the detachable rivet-upsetting anvil 0, having the stud (L for fitting the socket b in the bed-plate of the frame, and a plunger l), reciprocating in guideways of the frame, acts successively upon the tubular rivets to force them in turn through the material over the anvil to be riveted and cause them to be clinched or upset against the anvil-face. The rivets are automaticallyfed from a receptacle along a chute E in position to be acted upon by the plunger, and a foot-treadle F serves by suitableconnections to actuate the working parts of the machine.

The riveting attachment improved in accordance with my invention is constructed as follows: A strong stilt supporting-arm G is provided at or near one end with a securing stud or pin g for snugly fitting the anvilsocket I; of the frame, and at the other end and upon its opposite surface the supporting-arm is shouldered or thickened, forming a raised attachingscat ll for a yielding work-support or loop-carrier l, detachably secured to the supporting arm. The connection between the parts is shown as formed by two set-screws h 7z, by means olwhich the supportingarm and loo p-carrier may quickly be separatcdand connected and one carriersubstituted for another without change ofsupporting-arms. At the end of the loop-carrier opposite that attached to its supporting-arm there is provided the countersunk rivet-upsetting anvil 7.; \Vhen a thick carrier for use with large loops is employed, it is cut away or made of suliiciently-rcduced thickness at a suitable distance from the anvil, as at K, Fig. 3, to impart the desired spring to the carrier, that it may yield and accommodate itself to varying thicknesses of material between it and the supportingarm, as will in turn be made plain.

in the OPOl'dllOll ol' the attachment, when it is desired to rivet together the lapping edges of a box-loop .l and at the same time rivet the box-loop to a headstall-strap L, the piece of leather for the loop, with its edges Z 7, Fig. 0, which lap the one beyond the other, chamfered, as usual, has the strap L temporarily secured to it by rcadily-removable tacks in usual way, the strap extending along the outside of the loop and being bent back at the end of the loop, where a buckle N is engaged in the loop formed by the strap, from which point the strap passes back inside of andthrough the box-loop, is again bent to form a loop engaging the buckle O, and then extended back lengthwise of the box-loop and between its lapping edges, either the full length of the box-loop, as in Fig. 5, or only part way thereof, as when a blind or blinker P is secured in place, as will readily be un derstood from inspection of Figs. 4 and 6. The parts having been thus arranged, the ordinary anvil of the machine removed, and the attachment secured to the frame plate socket by its'attaching-Stud, the work is adjusted in position by sliding the box-loop upon its carrier of the attachment and the parts riveted together by successive operations of the machine, the work being moved by the operator-the desired distance betweeneach riveting operation.

It will be seen that by adjustably connecting the supporting-arm of the attachment to the frame of the riveting-machine by way of the stud fitting the frame-socket the attachment may quickly be applied to and removed from the machine, and when in use may be swung horizontally into any desired position most. convenient to the workman and best adapted to the work being done. It will further be seen that by the employment of a strong rigid supporting-arm the proper firm support for the work and pressure exerted by the operator is provided; that by the yielding of the springyloop-carrier it is self-adjusting Within certain limits to accommodate the material between it and the supporting-arm,

other fabrics for like or analogous use-vary greatly in lateral dimensions, the importance of providing for the ready substitution of a loop-carrier of larger or smaller size for one before in use is obvious; and it will further be seen that by making the attachment in detachably-connected parts the supportingarm, as shown, may be made strong and durable as compared with the loop-carrier, which, to insure proper working, requires to be made yielding. Hence in event of breakage of the carrier" the uninjured supporting-arm may be used in connection with other carriers, thus avoiding the expense of replacing the entire attachment, which would be necessary were it in one piece. By countersinking the anvil so that the teat thereof termin atesfiush, or nearly so, with the carrier-surface a holder for the loops maybe provided of uniform transverse dimensions throughout that part thereof embraced by loops of any desired length, thereby affording a proper support for the loops, which may snugly fit upon the carrier.

I claim as my invention The combination, in a boX-loop-riveting attachment for riveting-machines, of the rigid supporting-arm provided at one end with a loop-carrier-attaching seat and at the other with the attaching-stud for fitting the framesocket of the machine and adapted to secure said arm in any position to which it may be adjusted by turning, and the loop-carrier detachably secured to its seat on the su pportingarm and having the countersunk rivet-upsetting anvil, substantially as and'for the purpose set forth.

In testimony whereof Ihave hereunto subscribed my name.

VVILBER C. TRASK. Vitnesses:

W. F. PRIVETT, E. L. MITCHUM. 

